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213 results for “seed beetles”
Data from: Genomic evidence that resource-based trade-offs limit host-range expansion in a seed beetle
Trade-offs have often been invoked to explain the evolution of ecological specialization. Phytophagous insects have been especially well studied, but there has been little evidence that resource-based trade-offs contribute to the evolution of host specialization in this group. Here, we combine experimental evolution and partial genome resequencing of replicate seed beetle selection lines to test the trade-off hypothesis and measure the repeatability of evolution. Bayesian estimates of selection coefficients suggest that rapid adaptation to a poor host (lentil) was mediated by standing genetic variation at multiple genetic loci and involved many of the same variants in replicate lines. Sublines that were then switched back to the ancestral host (mung bean) showed a more gradual and variable (less repeatable) loss of adaptation to lentil. We were able to obtain estimates of variance effective population sizes from genome-wide differences in allele frequencies within and between lines. These estimates were relatively large, which suggests that the contribution of genetic drift to the loss of adaptation following reversion was small. Instead, we find that some alleles that were favored on lentil were selected against during reversion on mung bean, consistent with the genetic trade-off hypothesis.
Fig. 2. Male Megacerus centralis. a in A New Species of the Seed Beetle Genus Megacerus Fåhraeus, 1839 (Coleoptera: Bruchidae) and Redescription of Megacerus centralis (Pic), with a Key to the Mexican Species and New Host and Distribution Records
Fig. 2. Male Megacerus centralis. a) Dorsal habitus, b) Lateral habitus, c) Pygidium, d) Genitalia.
Fig. 1. Male Megacerus westcotti. a in A New Species of the Seed Beetle Genus Megacerus Fåhraeus, 1839 (Coleoptera: Bruchidae) and Redescription of Megacerus centralis (Pic), with a Key to the Mexican Species and New Host and Distribution Records
Fig. 1. Male Megacerus westcotti. a) Dorsal habitus, b) Lateral habitus, c) Pygidium, d) Genitalia.
Figure 1-6 from: Manfio D, Stramare Ribeiro-Costa C, Vieira M, Kergoat G (2014) A remarkable new species group of green seed beetles from genus Amblycerus Thunberg (Coleoptera, Chrysomelidae, Bruchinae), with description of a new Brazilian species. ZooKeys 401: 31-44. https://doi.org/10.3897/zookeys.401.6232
Figure 1-6 - Amblycerus virens (Jekel, 1855), specimen male: 1 dorsal 2 lateral 3 head 4 pygidium 5 median lobe of male genitalia 6 tegmen of male genitalia. Scale bars = 1.0 mm (Figs 1–2); scale bars = 0.5 mm (Figs 3–4, 6); scale bar = 0.2 mm (Fig. 5).
Figure 7-12 from: Manfio D, Stramare Ribeiro-Costa C, Vieira M, Kergoat G (2014) A remarkable new species group of green seed beetles from genus Amblycerus Thunberg (Coleoptera, Chrysomelidae, Bruchinae), with description of a new Brazilian species. ZooKeys 401: 31-44. https://doi.org/10.3897/zookeys.401.6232
Figure 7-12 - Amblycerus medialis Ribeiro-Costa, Vieira & Manfio, sp. n., holotype male: 7 dorsal 8 lateral 9 head 10 pygidium 11 median lobe of male genitalia 12 tegmen of male genitalia. Scale bars = 1.0 mm (Figs 7–8); scale bars = 0.5 mm (Figs 9–12).
Figures 52-68 from: Li Y, Wang Z, Guo J, Nápoles JR, Ji Y, Jiang C, Zhang R (2014) Contribution to the knowledge of seed-beetles (Coleoptera, Chrysomelidae, Bruchinae) in Xinjiang, China. ZooKeys 466: 13-28. https://doi.org/10.3897/zookeys.466.7283
Figures 52-68 - Tibia apical portion of Bruchus spp. male mid legs. 52 Bruchus affinis 53 Bruchus atomarius 54 Bruchus dentipes 55 Bruchus loti 56 Bruchus pisorum 57 Bruchus rufimanus 58 Bruchus sibiricus 59–61 Tibia apical portion of Bruchus spp. hind legs 59 Bruchus affinis 60 Bruchus pisorum 61 Bruchus sibiricus 62–67 Pygidium. 62 Bruchus rufimanus 63 Bruchus atomarius 64 Bruchidius tuberculicauda male 65 Bruchidius tuberculicauda female 66 Megabruchidius dorsalis male 67 Megabruchidius dorsalis female.
Figure 68 from: Li Y, Wang Z, Guo J, Nápoles JR, Ji Y, Jiang C, Zhang R (2014) Contribution to the knowledge of seed-beetles (Coleoptera, Chrysomelidae, Bruchinae) in Xinjiang, China. ZooKeys 466: 13-28. https://doi.org/10.3897/zookeys.466.7283
Figure 68 - Map of northwestern China, illustrating localities for Bruchinae species. Bruchus affinis and Bruchus loti = squares. Bruchus atomarius = triangles. Kytorhinus kergoati = dots. Only new records reported here are shown.
Figures 39-42 from: Li Y, Wang Z, Guo J, Nápoles JR, Ji Y, Jiang C, Zhang R (2014) Contribution to the knowledge of seed-beetles (Coleoptera, Chrysomelidae, Bruchinae) in Xinjiang, China. ZooKeys 466: 13-28. https://doi.org/10.3897/zookeys.466.7283
Figures 39-42 - Antennae. 39 Kytorhinus thermopsis male 40 Kytorhinus thermopsis female 41 Kytorhinus kergoati male 42 Kytorhinus kergoati female 43–44 Head 43 Kytorhinus immixtus 44 Kytorhinus thermopsis 45–46 Lateral pronotal margin. 45 Bruchus affinis 46 Bruchus rufimanus 47 Hind trochanters 47 Rhaebus solskyi 48–51 Hind femur. 48 Rhaebus solskyi male 49 Acanthoscelides pallidipennis 50 Callosobruchus maculatus outside view 51 Callosobruchus maculates inside view.
Figures 13-26 from: Li Y, Wang Z, Guo J, Nápoles JR, Ji Y, Jiang C, Zhang R (2014) Contribution to the knowledge of seed-beetles (Coleoptera, Chrysomelidae, Bruchinae) in Xinjiang, China. ZooKeys 466: 13-28. https://doi.org/10.3897/zookeys.466.7283
Figures 13-26 - Bruchinae in Xinjiang, dorsal and lateral view. 13–14 Megabruchidius dorsalis 15–16 Bruchus affinis 17–18 Bruchus atomarius 19–20 Bruchus dentipes 21–22 Bruchus loti 23–24 Bruchus pisorum 25–26 Bruchus rufimanus; black bar = 1 mm.
Figures 1-12 from: Li Y, Wang Z, Guo J, Nápoles JR, Ji Y, Jiang C, Zhang R (2014) Contribution to the knowledge of seed-beetles (Coleoptera, Chrysomelidae, Bruchinae) in Xinjiang, China. ZooKeys 466: 13-28. https://doi.org/10.3897/zookeys.466.7283
Figures 1-12 - Bruchinae in Xinjiang, dorsal and lateral view. 1–2 Spermophagus sericeus 3–4 Acanthoscelides pallidipennis 5–6 Bruchidius apicipennis 7–8 Bruchidius tuberculicauda 9–10 Callosobruchus chinensis 11–12 Callosobruchus maculatus; black bar = 1 mm.
Figures 27-38 from: Li Y, Wang Z, Guo J, Nápoles JR, Ji Y, Jiang C, Zhang R (2014) Contribution to the knowledge of seed-beetles (Coleoptera, Chrysomelidae, Bruchinae) in Xinjiang, China. ZooKeys 466: 13-28. https://doi.org/10.3897/zookeys.466.7283
Figures 27-38 - Bruchinae in Xinjiang, dorsal and lateral view. 27–28 Bruchus sibiricus 29–30 Kytorhinus immixtus 31–32 Kytorhinus karasini 33–34 Kytorhinus thermopsis 35–36 Kytorhinus kergoati 37–38 Rhaebus solskyi; black bar = 1 mm.
Fig. 1 in First record of the Asian seed beetle Megabruchidius dorsalis (Fåhraeus, 1839) (Chrysomelidae: Bruchinae) in Bulgaria
Fig. 1. Seed pods of Gleditsia triacanthos on the ground in Borisova Gradina Park, Sofia (A) and larvae of Bruchinae from dissected pod (B). Scale bar (B): 1 mm.
Fig. 2 in First record of the Asian seed beetle Megabruchidius dorsalis (Fåhraeus, 1839) (Chrysomelidae: Bruchinae) in Bulgaria
Fig. 2. Adults of Megabruchidius dorsalis, emerged from seed pods of G. triacanthos from Sofia, dorsal and ventral views. A, B: male; C, D: female. Scale bar: 1 mm.
Data from: Multivariate intralocus sexual conflict in seed beetles
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Data from: Kin but less than kind: within-group male relatedness does not increase female fitness in seed beetles
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Data from: Sexual conflict and correlated evolution between male persistence and female resistance traits in the seed beetle Callosobruchus maculatus
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Data from: The effect of plant identity and mixed feeding on the detection of seed DNA in regurgitates of carabid beetles
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Data from: Genomic evidence that resource-based trade-offs limit host-range expansion in a seed beetle
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Data from: Sex-specific selection under environmental stress in seed beetles
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Data from: Complex mitonuclear interactions and metabolic costs of mating in male seed beetles
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